import React from "react";
import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
import {
  faClock,
  faCheckCircle,
  faTimesCircle,
} from "@fortawesome/free-solid-svg-icons";
import { ConnectionStatus } from "./types";
import { OtterscanConfig } from "./useConfig";

type ConnectionErrorPanelProps = {
  connStatus: ConnectionStatus;
  config?: OtterscanConfig;
};

const ConnectionErrorPanel: React.FC<ConnectionErrorPanelProps> = ({
  connStatus,
  config,
}) => {
  return (
    <div className="h-screen flex flex-col bg-gray-300 font-sans">
      <div className="m-auto h-60 text-gray-700 text-lg min-w-lg max-w-lg">
        <Step type="wait" msg="Trying to connect to Erigon node..." />
        <div className="flex space-x-2">
          <span className="ml-7 text-base">{config?.erigonURL}</span>
        </div>
        {connStatus === ConnectionStatus.NOT_ETH_NODE && (
          <Step type="error" msg="It does not seem to be an ETH node">
            <p>Make sure your browser can access the URL above.</p>
            <p>
              If you want to customize the Erigon rpcdaemon endpoint, please
              follow these{" "}
              <a
                href="https://github.com/wmitsuda/otterscan#run-otterscan-docker-image-from-docker-hub"
                target="_blank"
                rel="noreferrer noopener"
                className="font-bold text-blue-800 hover:underline"
              >
                instructions
              </a>
              .
            </p>
          </Step>
        )}
        {connStatus === ConnectionStatus.NOT_ERIGON && (
          <>
            <Step type="ok" msg="It is an ETH node" />
            <Step type="error" msg="It does not seem to be an Erigon node">
              Make sure you rpcdaemon with Otterscan patches is up and running
              and the <strong>erigon_</strong> namespace is enabled according to
              the{" "}
              <a
                href="https://github.com/wmitsuda/otterscan#install-otterscan-patches-on-top-of-erigon"
                target="_blank"
                rel="noreferrer noopener"
                className="font-bold text-blue-800 hover:underline"
              >
                instructions
              </a>
              .
            </Step>
          </>
        )}
        {connStatus === ConnectionStatus.NOT_OTTERSCAN_PATCHED && (
          <>
            <Step type="ok" msg="It is an Erigon node" />
            <Step
              type="error"
              msg="It does not seem to contain up-to-date Otterscan patches"
            >
              Make sure you compiled rpcdaemon with compatible Otterscan patches
              and enabled <strong>ots_</strong> namespace according to the{" "}
              <a
                href="https://github.com/wmitsuda/otterscan#install-otterscan-patches-on-top-of-erigon"
                target="_blank"
                rel="noreferrer noopener"
                className="font-bold text-blue-800 hover:underline"
              >
                instructions
              </a>
              .
            </Step>
          </>
        )}
      </div>
    </div>
  );
};

type StepProps = {
  type: "wait" | "ok" | "error";
  msg: string;
};

const Step: React.FC<StepProps> = React.memo(({ type, msg, children }) => (
  <>
    <div className="flex space-x-2">
      {type === "wait" && (
        <span className="text-gray-600">
          <FontAwesomeIcon icon={faClock} size="1x" />
        </span>
      )}
      {type === "ok" && (
        <span className="text-green-600">
          <FontAwesomeIcon icon={faCheckCircle} size="1x" />
        </span>
      )}
      {type === "error" && (
        <span className="text-red-600">
          <FontAwesomeIcon icon={faTimesCircle} size="1x" />
        </span>
      )}
      <span>{msg}</span>
    </div>
    {children && <div className="ml-7 mt-4 text-sm">{children}</div>}
  </>
));

export default React.memo(ConnectionErrorPanel);
